A substance that donates a pair of electrons to form a coordinate covalent bond is called

When an acid reacts with metal carbonate, the products are

A. salt

B. water

C. carbon dioxide

D. all of above

Preservatives are used to preserve

A. food

B. acids

C. bases

D. water

Phenolphthalein in acidic solution is

A. colorless

B. pink colored

C. yellow colored

D. orange colored

The process in which acids (H+) and bases (OH-) react to form salts and water is called

A. neutralization

B. hydrogenation

C. halogenation

D. sublimation

Corrosive effect on the skin is caused by

A. acids

B. bases

C. water

D. mercury